LF514RU 查看數據表（PDF） - MicroPower Direct, LLC
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生产厂家
LF514RU
MicroPower Direct, LLC
LF514RU Datasheet PDF : 2 Pages
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Model Selection Guide
Model
Number
LF501RU
LF502RU
LF503RU
LF504RU
LF505RU
LF506RU
LF507RU
LF511RU
LF512RU
LF513RU
LF514RU
LF515RU
LF516RU
LF517RU
Input
Voltage (VDC)
Current (mA)
Nominal Range
Full-Load No-Load
24
9.0 - 36.0
217
20
24
9.0 - 36.0
260
20
24
9.0 - 36.0
251
20
24
9.0 - 36.0
251
20
24
9.0 - 36.0
260
20
24
9.0 - 36.0
251
20
24
9.0 - 36.0
252
20
48 18.0 - 75.0
109
10
48 18.0 - 75.0
130
10
48 18.0 - 75.0
126
10
48 18.0 - 75.0
125
10
48 18.0 - 75.0
130
10
48 18.0 - 75.0
125
10
48 18.0 - 75.0
126
10
Voltage
(VDC)
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
3.3
5.0
12.0
15.0
±5.0
±12.0
±15.0
Output
Current
(mA, Max)
1,200
1,000
417
333
±500
±208
±167
1,200
1,000
417
333
±500
±208
±167
Current
(mA, Min)
120.0
100.0
41.7
33.3
±50.0
±20.8
±16.7
120.0
100.0
41.7
33.3
±50.0
±20.8
±16.7
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 µF ceramic
capacitor be placed from the +Vout pin to the -Vout pin for single output units and from
each output to common for dual output units. For noise sensitive applications, the use of
3.3 µF capacitors will reduce the output ripple.
2. Transient recovery is measured to within a 1% error band for a load step change of 75%
to 100%.
3. No-load operation will not damage these units, however, they may not meet specifica-
tions.
4. Dual output units may provide a 10V, 24V or 30V output. To do this, connect the load
across the positive (+Vout) and negative (-Vout) outputs and float the output common.
5. The converter should be connected to a low ac-impedance source. An input source with
a highly inductive impedance may affect the stability of the converter. In applications
where the converter output loading is high and input power is supplied over long lines,
it may be necessary to use a capacitor on the input to insure start-up. In this case, it is
recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor be mounted close to the
converter. For 24V input units a 4.7 µF is recommended, and for 48V units a 2.2 µF.
6. Maximum capacitive load for 3.3V & 5V units is 2,000 µF, for 12V units 470 µF, for 15V &
±12V units 330 µF, for ±5V units 680 µF, and for ±15V units 220 µF.
7. It is recommended that a fuse be used on the input of a power supply for protection. See
the table above for the correct rating.
Derating Curve
Mechanical Dimensions
Reflected
Ripple Cur.
(mA)
15
15
15
15
15
15
15
10
10
10
10
10
10
10
Efficiency
(%, Typ)
76
80
83
83
80
83
83
76
80
83
83
80
83
83
Fuse Rating
Slow-Blow
(mA)
1,500
1,500
1,500
1,500
1,500
1,500
1,500
700
700
700
700
700
700
700
Remote ON/OFF
Parameter
Supply On
Supply Off
Standby Input Current
Control Common
Condition
Units
2.5 to 5.5 or Open Circuit VDC
-0.7 to 0.8
VDC
10
mA
Referenced to Negative Input (-Vin)
Remote ON/OFF Notes:
1. Maximum sink current at the on/off pin (pin 1) during a logic
low is 300 µA.
2. Maximum allowable leakage current of a switch connected to the
on/off terminal (Pin 1) at logic high (2.5V to 100V) is 200 µA.
Notes:
• All dimensions are typical in
inches (mm)
• Tolerance x.xx = ±0.01 (±0.25)
• Pin 1 is marked by a “dot” or indentation on the unit
Board Layout
Pin Connections
Pin Single Dual
1 On/Off On/Off
2
-Vin
-Vin
3
-Vin
-Vin
9
NC Common
10
NC
NC
11
NC
-Vout
12
NC
NC
13
NC
NC
14 +Vout +Vout
15
NC
NC
16 -Vout Common
22
+Vin
+Vin
23
+Vin
+Vin
24
NC
NC
NC: No Connection
MicroPower Direct
www.micropowerdirect.com
292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: sales@micropowerdirect.com
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